Integral Ad Science Holding Corp.
IASDelisted Dec 23, 2025- Industry
- Services-Computer Programming, Data Processing, Etc.
- SEC CIK
- 0001842718
Integral Ad Science Holding Corp. was delisted on Dec 23, 2025; its insiders filed their last Form 4 on Dec 29, 2025; 171 institutions reported holding it in 13F filings for Q3 2025, worth $1.65B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q1 2023
Institutional positions in Integral Ad Science Holding Corp. as of Mar 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 116
- +10 vs. Q4 2022
- Shares held
- 149.9M
- +1.84M (+1.2%) vs. Q4 2022
- Total value
- $2.14B
- +$837.3M (+64.4%) vs. Q4 2022
- New holders
- 23
- 33 more added
- Sold out
- 13
- 43 more reduced
1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IAS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $10 |
| Q1 2026 | 1 | $10 |
| Q4 2025 | 2 | $3.41K |
| Q3 2025 | 171 | $1.65B |
| Q2 2025 | 170 | $1.34B |
| Q1 2025 | 187 | $1.28B |
| Q4 2024 | 165 | $1.64B |
| Q3 2024 | 172 | $1.68B |
| Q2 2024 | 156 | $1.52B |
| Q1 2024 | 166 | $1.51B |
| Q4 2023 | 173 | $2.19B |
| Q3 2023 | 164 | $1.79B |
| Q2 2023 | 168 | $2.71B |
| Q1 2023 | 116 | $2.14B |
| Q4 2022 | 107 | $1.30B |
| Q3 2022 | 104 | $1.08B |
| Q2 2022 | 93 | $1.49B |
| Q1 2022 | 92 | $2.05B |
| Q4 2021 | 80 | $3.41B |
| Q3 2021 | 70 | $2.99B |
| Q2 2021 | 70 | $2.96B |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2023
Shares, value and share of portfolio for each institution holding Integral Ad Science Holding Corp.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 734,384 | $10.5M | 0.00% | +39,443+5.7% | Added |
| Dimensional Fund Advisors LP | 790,555 | $11.3M | 0.00% | +409,401+107.4% | Added |
| Ameriprise Financial Inc | 793,096 | $11.3M | 0.00% | −281,779−26.2% | Reduced |
| Geode Capital Management, LLC | 840,349 | $12.0M | 0.00% | +13,202+1.6% | Added |
| Wellington Management Group LLP | 972,367 | $13.9M | 0.00% | +518,407+114.2% | Added |
| Sunriver Management LLC | 994,160 | $14.2M | 2.96% | +994,160 | New |
| Clearbridge Investments, LLC | 1,299,883 | $18.5M | 0.02% | −300,790−18.8% | Reduced |
| Engle Capital Management, L.P. | 1,370,000 | $19.5M | 6.41% | +370,000+37.0% | Added |
| FMR LLC | 1,435,292 | $20.5M | 0.00% | +416,319+40.9% | Added |
| Lord, Abbett & Co. LLC | 1,562,985 | $22.3M | 0.08% | +1,173,707+301.5% | Added |
| Schonfeld Strategic Advisors LLC | 1,806,900 | $25.8M | 0.25% | −1,201,900−39.9% | Reduced |
| TimesSquare Capital Management, LLC | 2,190,949 | $31.3M | 0.46% | −560,740−20.4% | Reduced |
| BlackRock Inc. | 2,472,386 | $35.3M | 0.00% | −10,539−0.4% | Reduced |
| Vanguard Group Inc | 5,421,611 | $77.4M | 0.00% | +659,092+13.8% | Added |
| Atlas Venture Advisors, Inc. | 22,722,771 | $324.3M | 69.83% | 00.0% | Unchanged |
| Vista Equity Partners Management, LLC | 94,380,001 | $1.35B | 17.82% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −275,000−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −139,336−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −66,896−100.0% | Sold out |
| B. Riley Asset Management, LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −45,494−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −28,248−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −24,480−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −18,807−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −15,673−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −4,339−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −1,990−100.0% | Sold out |
| Credit Suisse AG | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Alpha Paradigm Partners, LLC | – | – | – | – | Not filed |